22131013321229 has 4 divisors (see below), whose sum is σ = 22131387006876. Its totient is φ = 22130639635584.

The previous prime is 22131013321199. The next prime is 22131013321379. The reversal of 22131013321229 is 92212331013122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14294221792900 + 7836791528329 = 3780770^2 + 2799427^2 .

It is a cyclic number.

It is not a de Polignac number, because 22131013321229 - 2⁸ = 22131013320973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22131013321195 and 22131013321204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131013321129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186753974 + ... + 186872439.

It is an arithmetic number, because the mean of its divisors is an integer number (5532846751719).

Almost surely, 2^{22131013321229} is an apocalyptic number.

It is an amenable number.

22131013321229 is a deficient number, since it is larger than the sum of its proper divisors (373685647).

22131013321229 is an equidigital number, since it uses as much as digits as its factorization.

22131013321229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373685646.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 22131013321229 in words is "twenty-two trillion, one hundred thirty-one billion, thirteen million, three hundred twenty-one thousand, two hundred twenty-nine".